St. Alban’s

August 2009

St. Alban’s

Static Water Level – Church Well

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Levelogger Date

Date: July 10-12, 2009

Q = 332 L/min

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53 hr Aquifer Test – Church Well

Static Water Level – Sea Farm Well

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Levelogger DateDate: July 15-18, 2009 Q = 232 L/min

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72 hr Aquifer Test – Sea Farm Well

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Date: July 22-24, 2009 Levelogger Date

Recirculating

Condition (?)

48 hr Aquifer Test – Town Well #8

Interference Test

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Levelogger Date Test: Interference test Site: St. Alban's Date: July 15-25, 2009 Pump Start on July 15, 16:22

Pump Starts

in SFWPump Starts

in CW

Pump Starts

in Town Well

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Town Well

Proposed Water Usage New Facility St Albans

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20-Aug 30-Aug 9-Sep 19-Sep 29-Sep 9-Oct 19-Oct 29-Oct 8-Nov 18-Nov 28-Nov

Date (2008)

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O. B. Yield

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Date (2008)

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Based 400 L per day per person

O. B. Yield

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Based on 400 L per person per day

Make up (Daily in m3/day)

AugustSeptember

OctoberNovember

O. B. Yield

Average Town Daily Water Usage

O. B. Yield

• M B & A Ltd Report – Total Yield of Overburden Aquifer – 2,160 m3/day.

• Town Usage – 550 to 2,020 m3/day.

• Town needs – 1,250 people at 400 litres per person per day – 500 m3/day.

• Fish Plant – estimated at 300 to 600 m3/day .

• Total Town needs – app. 1,100 m3/day.

• Fire flows from storage and well capacity

Assessment and Background

• (2,160 – 1,100 m3/day) = 1,060 m3/day.

• Bedrock aquifer not included in MB&A Ltd

report.

• Bedrock wells can produce in excess of 600

litres/minute in the short term.

• Bedrock aquifer is a leaky confined aquifer.

• Possible long term yield from bedrock wells

ranging from 100 to 600 m3/day.

• Swanger Cove estimated to yield about 15 to

50 m3/day of fresh to brackish water.

• Fish Hatchery Demand peaks in April

Conclusions – Water Availability

• Stakeholders

Town, including the Fish Plant

DFA – research/service site

DMA and DOEC – Water Supply

Fish Hatchery

DFO – Swanger Cove River low flow

Future Industrial Developments

• Water needs are much less than water usage due to leaks in Town’s pipelines

• Fix the leaks – free up over 1,000 m3/day

Points for Discussion

• COS collected data on the bedrock aquifer that is needed to calibrate a future 3D flow model.

• Consider fixing major leaks in the Town’s water distribution network.

• Leak fix will free up water for future Town and Industry growth.

• Town wells need to be rehabilitated and specific capacity restored.

Points for Discussion

• Water needed for the fish hatchery exists in the overburden aquifer through bedrock wells.

• Additional water is available from the bedrock aquifer and Swanger Cove area.

• Consider fixing the major leaks in the Town’s water distribution network.

Conclusion